Which statement best describes the force between molecules?

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Intermolecular forces are the attractions that act between separate molecules, shaping how substances behave in bulk. These forces determine why liquids form and how they flow, why substances have specific boiling and melting points, and why some things dissolve in others. They are distinct from the forces that hold atoms together within a single molecule (chemical bonds such as covalent or ionic bonds). Nuclear force operates inside the atomic nucleus and is unrelated to how separate molecules interact, while gravity is present but negligible in strength at molecular scales compared with these intermolecular interactions. So the statement that best describes the force between molecules is that it is an intermolecular force, the glue that governs how molecules influence each other in condensed phases.